Promissory Notes Law & Legal Definition. Promissory Note: A promissory note is a written promise to pay a debt. An unconditional promise to pay on demand or at a fixed or determined future time a particular sum of money to or to the order of a specified person or to the bearer. promissory note should have several essential elements, including the amount of the loan, the date by which it is to be paid back, the interest rate, and a record of any collateral that is being used to secure the loan.
Definition of CALCULATOR for Kids. 1. : a person who calculates. 2. : a usually small electronic device for solving mathematical problems.earn More About CALCULATOR. Spanish Central: Spanish translation of calculator. Nglish: Translation of calculator for Spanish speakers. Britannica English: Translation of calculator for Arabic speakers. Britannica.com: Encyclopedia article about calculator.
Calorimetry is the science or act of measuring changes in state variables of a body for the purpose of deriving the heat transfer associated with changes of its state due, for example, to chemical reactions, physical changes, or phase transitions under specified constraints. Calorimetry is performed with a calorimeter. The word calorimetry is derived from the Latin word calor, meaning heat and the Greek word Î¼Î­ÏÏÎ¿Î½, meaning measure. Scottish physician and scientist Joseph Black, who ...